Heat a pan and add chana dal, urad dal, and cumin seeds. Roast for 3-4 mins and keep it aside.
1 tbsp oil, 1 tbsp chana dal, 1 tbsp urad dal, 1 tsp cumin seeds
In the same pan, add garlic cloves, ginger, and onion. Let it cook.
3-4 nos big garlic cloves, 1/2 inch ginger, 1 no big onion,
Next, add the tomatoes, dry red chillies, tamarind, and salt. Cook till tomatoes become soft. Let it cool down.
2 nos big tomatoes, 5-6 nos dry red chillies, small piece of tamarind, salt
Transfer all the roasted dals and tomato mixture to a grinding jar. Add water and grind into a fine paste.
Heat a tadka pan and add oil. Next, add the mustard seeds and add the curry leaves. When the curry leaves crackle add the tadka to the chutney.
1 tbsp oil, 1/2 tsp mustard seeds, 7-8 nos curry leaves
Serve it with dosa and idlis!